boyers



ILPETERS, PNDTO-LITHOGRAPHER, WASHWTON. DA C:

UNITED sTATEs PATENT oEEIoE.

WM. BOYERS, OF MOUNT CARROLL, ILLINOIS.

PUMP.

Specication of Letters Patent No.

To all whom t may concern:

Be it known that I, WILLIAM BorERs, of Mount Carroll, in the county of Carroll and State of Illinois, have invented a new and Improved Pump; and I do hereby declare that the following is a full and eXact description thereof, reference being had to the accompanying drawings, making part of this specification, Figure l being an elevation of the pump; Fig. 2, a central vertical section thereof inthe plane indicated by the line a m, Fig. 1.

Like letters designate corresponding parts in all the figures.

My improved pump is especially intended for deep, bored wells, of small diameter; and my principal improvement has for its object rendering the pump cheap, light, and compact, as well as effective, when adapted to such a use. To insure these results in the best manner, since the wells may be one or two hundred or more feet in depth, and consequently the water must be lifted most of the height, unless a multiplication of pumps is resorted to, the piston cylinder A, must be located at the bottom of the well; from which a mere tube D, (ordinary gas pipe, for instance,) conducts the water upward to the delivery spout a. This arrangement of the cylinder, and the employment of a small conducting tube, render it necessary to locate the connecting rod, or rods, b, c, by which the piston, orpistons G, H, may be actuated, outside of said cylinder and tube. I have so arranged the pump, that I am enabled to employ two pistons G, H, by which the pumping is carried on during both the up and down stroke of the lever E, and, at the same time, very small connecting rods b, c, (mere wires, in fact,) suiiice for actuating the pistons, thus eecting a great saving in cost and weight of rods, and reducing the size of space necessary to receive the pump.

To understand the nature of this improvement, it is necessary to consider, that when the well is one or two hundred feet deep, if a connecting rod should be used sufliciently large and rigid to force the piston down at each stroke, it would be so 19,286, dated February 9, 1858.

heavy as to require very considerable eX- penditure of power to lift 'its mere weight; and its cost would be in proportion thereto. But if the rod should only be used in raising, or rather drawing on, its piston, it is evident that it might be made exceedingly small-or a cord or chain might be used. The means by which I accomplish this is as follows The two pistons G, H, (which may be of any ordinary construction, and provided with ordinary clack valves, as represented, or any other suitable kind,) are situated in the same cylinder A, one above the other, so that no additional diameter of well is required for employing two pistons instead of one. One piston is lifting, while the other is descending to prepare in turn for lifting; and consequently they are to move continually in opposite directions. From the sides of the pistons there project respectively through slots Z, Z, in opposite sides of the cylinder A, ears, or lugs, g, f, to which the small connecting rods b, c, are respectively attached. Thus, since the connecting rods are attached to the lever E, at equal distances from its fulcrum, on opposite sides, as the lever is worked, the pistons Y are driven with equal speed in opposite directions, as required. But in order t0 force the pistons down, by the drawing action of these rods, I employ another ear d, projectf ing from one of the pistons, on the side opposite to the position of its rod-ear g, outward through another slot- Z, in the cylinder A. To this ear a chain or cord, z, is attached, and passes thence downward around a pulley i, secured to the pump cylinder, and then upward to the ear f, of the other piston, all substantially as represented in the drawings. This chain being drawn sufciently tight, as each rod in turn is drawn upon, it not only lifts its own piston, but by acting through the chain, draws down the other piston. Thus, the desired object is perfectly and conveniently attained. In very deep wells, also, it is found advantageous to locate air-chambers at intervals along the conducting pipe D, as at B, in the drawings. It is also often desirable to attach hose at the spout a, for various purposes; and for this purpose it is best to have an air-chamber C, at or near the upper end of the pump.

5 tons Working in the same cylinders; but

h, with the lifting rods b, c, and with double n pistons G, H, Working in a single cylinder 10 A, substantially in the manner and for the purposes herein specified. WM. BOYERS.

I do not claim the employment of two pis- What I claim as my invention and desire Witnesses: to secure by Letters Patent, is- S. J. ALLIs, The combination of the connecting Chain J. FRASER. 

